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Amazon FBA vs FBM for Sellers

Compare Fulfillment by Amazon (FBA) and Fulfillment by Merchant (FBM): costs, control, Prime eligibility, and tax implications.

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Fulfillment Overview

Amazon FBA

Amazon stores, picks, packs, and ships your products. Handles customer service and returns. Automatic Prime badge.

Pros

  • Prime badge increases sales
  • Amazon handles fulfillment & CS
  • Multi-Channel Fulfillment available
  • Buy Box advantage

Cons

  • Higher per-unit cost
  • Long-term storage fees
  • Inventory commingling risk
  • Creates sales tax nexus in US

Best for: High-volume sellers, Prime-focused strategy

Cost: FBA fees $3-10/unit + storage $0.87-2.40/cu ft

Setup: 1-2 weeks (shipment to FBA warehouse)

Amazon FBM

Seller stores and ships products directly to customers. Seller handles all fulfillment, customer service, and returns.

Pros

  • Lower per-unit cost
  • Full inventory control
  • No storage fees to Amazon
  • Brand packaging control

Cons

  • No automatic Prime badge
  • Must handle all CS yourself
  • Slower shipping = lower ranking
  • More operational complexity

Best for: Low-volume, heavy/oversized, or custom products

Cost: Professional seller account $39.99/month + referral fees

Setup: 1-3 days

FAQ

Does FBA create sales tax nexus in US states?+

Yes. Storing inventory in Amazon's US warehouses creates physical nexus in those states, requiring sales tax registration, collection, and filing. Amazon collects as marketplace facilitator in most states, but you may still need to register.

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Updated 2026-08-02